Improvement in lanterns



itnitad same HIRAM JAooB WHITE, or

BOSTON, MASSACHUSETTS. I

Letters Patent No, 109,856, dated December 6, 1870.

IMPROVEMENT IN LANTERN'S.

To all persons to whom these presents may come:

Be it known that I, HIRAM JACOB Warrant Boston, in the county of Suifolk and State of Massachusetts, have invented a new and usefulImprovementin Lanterns; and do herebfdcclare the same to befully described in the following specification and rcprcsen ted in. the accompanying drawing, of which- Figure 1 denotes a front elevation, and

Figure 2, a vertical section of onc of my improved lanterns.

Figure 3 is a top view of its air-supplying guard as separated from the lamp and burner.

Figure 4 is averticalsect-ion of the closing ringand portions of one pair of the frame springs. I

Figure 5 is a verticalscction of the said ring and portions of the other pair of the frame springs. v

The frame of this lantern, the bottom' dish, and the air-supplying guard are intended for application to an ordinary kcrosine lamp and chimney of the kind represented, or any other substantially the same.

In the drawing- A denotes the glass body or reservoir of the lamp as placed within a metallic dish,B.

Previous to screwing the burner C to the neck of the lamp-body the air-supplying guard D is placed 011 such neck, or arranged therein, in the manner as shown, the burner being next screwed to the neck, so as to hold the guard thereto. 7

The said air-supplying guard is of a circular form, and has within it a conical chamber, g, provided with a dome-shaped bottom, having a'circular opening, I), at its center, there being a circular mouth or socket, c, at the top of the said chamber.

The chamber 9 is surrounded by an annular and 'concentric chamber, ll, having numerous perforations or holes, a 0, in its walls or oppositsidcs.

A curved deflector or mouth-piece, j, encircles the annularchaniber (Z, and is attached to its bottom, there being a space between the exterior surfaceof the annulus (I and the said deflector f, all as represented.

If necessary, the upper part of the guard I) may he notched or recessed, to receive the shank h of the wick elevator.

The air for supply of the burner first passes into the deflector f, and thence it goes through the outer range of holes 0 into the chamber at, out of which'it escapes through the inner series of holesc and enters the chamher 9. I

The purpose of the air-supplying guard, made as described, is not only to supply air to the burner, but to prevent the flame of the wick from being either extinguished or disturbed by aerial current-s, when the lantern may he suddenly elevated or depressed, or moved or swung laterally.

The Schedule referred to in these Letters Patent and making part of the same.

' Themetallic dish B serves to prevent breakage of the lamp-body, such as would be liable totake place in case of the lantern being dropped orset down quickly upon ahard body or surface.

The frame of the lantern shown at I is composed of a smoke-dome, E, and a series of flexile or spring bars, F F G G, arranged together as represented.

The saidfiexile bars areformed to hook underneath guard D, and where they are to be encircled by a clamping ring or clasp, H. v

The said clasp, when in place, rests in the grooves and on the shoulders. The purpose of having two of the bars made with shoulders and the the other two with grooves, as described, is to facilitate the raising of the clasp-ring, which can be' effected when the grooved harsarc clasped by the hand of a person, so as to spring tl-iem inward. ore the four bars grooved it would be difficult or inconvenient to detach the clasp ring from them, one hand being required in effecting its elevation, and the other for detaching it from the catcher or grooves of the springs. By raising the clasp- ,ring on the springs, the latter will spring outward beyond the dished base, so as to enable the frame tobe detached from the lamp. 1

The dome, at bottom, has a mouth-piece, m, to receive and fit to the upper part of the glass chimney n of the lamp. The sides of the upper portion of the dome are pertbrated with holes for the escape of smoke and. air, beveled,or have a downward inclination, as represented, the dome at such part being in shape like an inverted conic frustum. I

A bale or handle, 0, is pivoted to cars 1) 1), projecting from the dome, and such dome may have a conical top, as represented, or it may have a flat top.

The manner in which the perforated sides of the dome are flared operates to prevent air, when the lantern may be in the act of being suddenly raised from passing into the holes of such sides to the detriment of the draught of air up the chimney and out of the dome.

' In the above-described lantern,

I claim, as of my invention, the following, viz:

It. The air-supplying guard 1), as composed of the for: minous sided annular chan'ibcr (Z, the month-piece f, id the chamber g, constructed and arranged substantially as specified.

2. The combination and arrangement of the guard D, substantially as described, with the lamp-body or reservoir A, and the burner O, hpplied together, as set; forth.

3. The combination of the metallic; dished guard B and the elastic lantern frame, as explained, 'with the glass lamp-body A, the burner O, and its chimney, as described.' V

4. The lantern frame I, as made, with shoulders k k to two of its elastic hooked bars, F F, and grooves I l to the-other two, G G, such being for receiving the ring H, as set forth.

' 5. The dome, as made, with the chimneyu'eceiver or month an, and also with the fu aminous sides, ar-

ranged to flare in manner as explained and repre sented;

\Vibnesses: HIRAM JACOB WHITE.

R. H'. EDDY,

- J. R. SNOW. 

